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Research Journal of Medicinal Plants
  Year: 2014 | Volume: 8 | Issue: 4 | Page No.: 196-203
DOI: 10.3923/rjmp.2014.196.203
 
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Anti-bacterial Effect of Marine Algae against Oral-borne Pathogens

Je-Hyuk Lee

Abstract:
The aim of this study is to screen and investigate marine algae that can be used as a natural anti-bacterial agent for oral health care. The anti-bacterial activities of marine algal extracts were evaluated by agar-well diffusion assay. Marine algal extracts were dispensed into the wells on agar plates. After incubation, a clear zone surrounded substances was considered as positive exhibiting anti-bacterial properties. Among 51 marine algal extracts, Laurencia okamurae Yamada, Dictyopteris undulata Holmes and Sargassum micracanthum (Kutzing) Endlicher showed the potent anti-bacterial activities against tested all oral pathogens. Sargassum micracanthum (Kutzing) Endlicher showed the strongest anti-bacterial activity with 6.0±1.4 mm of clear zone against Streptococcus mutans. Additionally, the growth of S. sobrinus and S. pyogene was inhibited the most effectively by an extract of Sargassum micracanthum (Kutzing) Endlicher. Laurencia okamurae Yamada had the strongest susceptibility with 9.5±0.7 mm of clear zone against S. sobrinus. Laurencia okamurae Yamada, Dictyopteris undulata Holmes and Sargassm micracanthum (Kutzing) Endlicher showed the superior anti-bacterial activities to chemical antibacterial agents, such as streptomycin and CPC against oral pathogens. In addition, the growth of S. anginosus, S. aureus and S. epidermis was suppressed by the treatment of Laurencia okamurae Yamada, Dictyopteris undulata, Holmes and Sargassum micracanthum (Kutzing) Endlicher.
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How to cite this article:

Je-Hyuk Lee , 2014. Anti-bacterial Effect of Marine Algae against Oral-borne Pathogens. Research Journal of Medicinal Plants, 8: 196-203.

DOI: 10.3923/rjmp.2014.196.203

URL: https://scialert.net/abstract/?doi=rjmp.2014.196.203

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